Roma Agrawal

"From skyscrapers to bridges, meet the extraordinary people who helped build some of the world's architectural marvels"--

"A structural engineer examines the seven most basic building blocks of engineering that have shaped the modern world"-- "Some of humanity's mightiest engineering achievements are small in scale--and, without them, the complex machinery on which our modern world runs would not exist. In Nuts and Bolts, structural engineer Roma Agrawal examines seven of these extraordinary elements: the nail, the wheel, the spring, the magnet, the lens, the string,...